linux-kernel - [PATCH 2/4] regulator: debug early supply resolving

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Message-Id: <f9cba575580369e46661a9278ee6c6a8d8564c2a.1605225991.git.mirq-linux@rere.qmqm.pl>
Date:   Fri, 13 Nov 2020 01:16:49 +0100
From:   Michał Mirosław <mirq-linux@...e.qmqm.pl>
To:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>
Cc:     Ahmad Fatoum <a.fatoum@...gutronix.de>,
        linux-arm-kernel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/4] regulator: debug early supply resolving

Help debugging the case when set_machine_constraints() needs to be
repeated.

Signed-off-by: Michał Mirosław <mirq-linux@...e.qmqm.pl>
---
 drivers/regulator/core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index bcd64ba21fb9..ad36f03d7ee6 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -5296,6 +5296,8 @@ regulator_register(const struct regulator_desc *regulator_desc,
 		/* FIXME: this currently triggers a chicken-and-egg problem
 		 * when creating -SUPPLY symlink in sysfs to a regulator
 		 * that is just being created */
+		rdev_dbg(rdev, "will resolve supply early: %s\n",
+			 rdev->supply_name);
 		ret = regulator_resolve_supply(rdev);
 		if (!ret)
 			ret = set_machine_constraints(rdev);
-- 
2.20.1